[mcv]

I don't think that's the issue in this case, though. This is about a more subtle issue.

From what I understand from the article, Harley and Westinghouse aren't stopping you from repairing your own stuff, it's just that doing so voids their warranty. Presumably on the logic that you may have made changes that they can't be expected to support, or inexpert repairs could have caused damage.

And there's some logic to that, but it ignores the fact that if the item is still under warranty, those independent repairs should have been done under warranty too. (I guess emergency repairs where the owner can't afford to wait for the official repairs are the primary reason for such repairs?) And also that such repairs could have been done expertly or have been very limited, so revoking warranty for them may still be unjustified.

But I'd say there's a bit of grey area here. I don't think you can expect manufacturers to clean up other people's mess for free under warranty.